The authors examine the labor market reintegration after medical rehabilitation by analyzing a large representative administrative panel data set for Germany. The research design focuses on socio-demographic group differences in before-after differences in days with unemployment benefits, days in employment, and labor income of participants in medical rehabilitation. The mean before-after differences indicate that the number of days with unemployment benefits is larger and the number of working days and labor income are smaller after the rehabilitation than before. Our regression analysis further reveals that the before-after differences in labor market outcomes differ significantly between socio-demographic groups.